Disk oiler.



WITNESSES INV EZNTl3R- A'FTEJR N EY coLuMhlA vumpamvn co., WASHINGTON,a. c.

Patented Aug. 8, i911.

UNTTEE STATES PATENT OFFTQE.

ERNEST G. SHAW, 0F MILWAUKEE, WISCONSIN, ASSIGNOR T0 ALLIS-CHALMERS GOM-IPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

DISK OILER.

Specification of Letters Patent.

Patented Aug. 8, 1911.

To all whom it may concern:

Be it known that I, Ennnsr C. SHAW, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State of"Wisconsin, have invented a certain new and useful Improvement in DiskOilers, of which the following is a specification.

This invention relates to improvements in the construction oflubricating devices, and in particular to improvements in theconstruction of disk oilers for shaft bearings.

The object of the invention is to provide a disk oiler for shaftbearings which is simple in its construction and efiicient in itsoperation.

A clear conception of one embodiment of the invention can be obtained byreferring to the accompanying drawing in which like reference charactersdesignate thesame or similar parts in like or different vlews.

Figure 1 is a side elevation of a bearing having a disk oiler built inaccordance with the invention, applied thereto, a portion of the bearingand oil casing being shown in section. Fig. 2 is a plan view of an oildisk such as is shown in the device illustrated in Fig. 1. Fig. 3 is aside view of half of the disk shown in Fig. 2, looking toward the breakwhich separates the disk halves. Fig. 4: is a plan view of a snap ringsuch as is used to hold the two parts of the disk together. Fig. 5 is atransverse vertical sec tion through the disk portion of the bearing andoil casing of the device shown in Fig. 1.

The shaft 1 is supported directly by the lower shell 7 having thebabbitted or bronze bearing lining 71 formed therein, see Fig. 1. Theupper shell 2 also has a lining 71 formed therein and coacts with theupper portion of the lower shell 7 and the shaft 1, being fastened tothe lower shell 7 in any suit-able manner, not shown. The lower shell 7has a central lug 11 formed thereon, which lug 11 coacts with an uppersurface of the bottom of the oil casing 8, thus forming a support forthe lower shell 7, shaft 1 and upper shell 2 within the casing 8. Theoil casing 8 forms a recess in which the lower shell 7 is located, therebeing a space between the outer surface of the shell 7 and the innersurface of the oil casing 8 forming an oil chamber 12. A space 1& oneither side of the shaft 1 separates the upper shell 2 from the oilcasing 8 and forms a connection between the chamber 12 and theatmosphere. The oil casing 8 approaches the shaft 1 at either end of thelower shell 7 and is supported near its center upon a lower sphericalsurface 13, thus forming a support for all of the bearing elements andfor the shaft 1. An upper spherical surface 113 is formed on the uppershell 2 directly above the lower spherical surface 13 of the casing 8,and has the same radius of curvature as that of the surface 13.

The oil disk 5, see Figs. 1, 2, 3, 4, 5, is formed in halves and has agroove 20 extending around its periphery. The notches 19 which projectinto the disk 5 from the inner surface thereof, are spaced 180 degreesapart and form weakened portions of the disk 5. The brakes 18 extendoutwardly from the notches 19 and separate the halves of the disk 5,which halves are normally held together by a snap ring 6 coacting in thegroove 20 of the disk 5.

In the bearing shown, see Figs. 1, 5, there are two oil disks 5 mountedon the shaft 1, these disks 5 being placed around the shaft 1, which isof slightly larger diameter than the internal diameters of the disks 5,and held in coaction with the shaft 1 by the snap rings 6. The uppershell 2 is of enlarged diameter opposite the disk to allow the upwardextension of the disks 5 therein, and have openings at the tops of theenlarged portions above the disks 5. The deflectors 17 extend down intothe openings to within a short distance from the disks 5, and haveextensions at the sides of the disks 5 which approach the oil grooves 15formed in the lining 71 of the upper shell 2. The are shaped ribs 4 areformed on the deflectors 17, extending laterally therefrom and havingtheir ends directed down toward the extensions at the bottom of thedeflectors 17. The caps 3 at the top of the deflectors 17 prevent anyforeign matter from dropping into the openings in the upper shell 2 andare provided with handles 16 to permit removal of the deflectors 17 Thelower shell 7 has enlarged portions corresponding to those of the uppershell 2, at the disk sections thereof, which allow the disks 5 to extenddownward therein. The enlarged portions of the lower shell 7 haveopenings 10 near their lower extremities. Oil grooves 15 are formed inthe lining 71 of the lower shell 7. The oil casing 8 has .5 to thedeflectors 17.

enlarged portions formed around the enlarged portions of the lower shell7, which enlarged portions of casing 8 have drains, normally closed bypipe plugs 9 at their lower extremities.

During the operation of the disk oiler, the casing 8 is provided withoil to a level slightly below the bottom of the shaft 1. The disks 5extend down into the oil which rises through the openings 10, into thechamber formed within the lower shell 7 and surrounding the lowerportion of the disk 5, see Figs. 1, 5.

As the shaft 1 is revolved, carrying with it the disks 5, oil is carriedup by the disks Upon reaching the deflectors 17 the oil thus elevated,is brushed off from the disks 5, being transferred to the deflectors 17.Due to the velocity of the disks 5, the oil rises on the deflectors 17until it strikes the ribs 4, which ribs & change the course of the oil,deflecting it toward the sides of the deflectors 17 The deflected oilthen passes down toward the shaft 1 under the action of gravity. Uponreaching the shaft 1, a portion of the deflected oil passes into the oilgroove 15 at the top of the shaft, the remaining portion being carriedback to the casing 8. The oil which enters the oil groove 15 is carriedaround the shaft 1, thus efficiently lubricating it, and is eventuallydeposited in the lower oil groove 15, from which it flows back to thecasing 8.

The space 14 between the casing 8 and the shell 2 serves as a vent toprevent the formation of a partial vacuum within the chamber 12, abovethe oil therein, and thus prevents the oil from rising to an abnormalheight within the chamber 12.

WVith the use of a deflector 17, having both sides alike, that is,having two ribs 4, it will be seen that the device will act equally asefficient with either direction of rotation of the shaft 1.

It should be understood that it is not desired to be limited to theexact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

It is claimed and desired to secure by Letters Patent,

In an oiler, a shaft, a shell surrounding said shaft and forming abearing therefor, an oil basin below said shell, a disk formed insegments mounted on said shaft for rotation thereby, portions of saiddisk being of reduced cross-section and said segments terminating atcorresponding fracture surfaces at said portions of reducedcross-section, and said disk having a deep groove formed in itsperiphery, a snap ring in the bottom of said groove for holding saiddisk segments together and on said shaft, and a deflector held in saidshell above and in contact with said disk but free from contact withsaid snap ring.

In testimony whereof, I aflix my signature in the presence of twowitnesses.

ERNEST G. SHAW. -Witnesses:

H. O. GAsn,

W. H. LIEBER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C. 7

